https://bugs.kde.org/show_bug.cgi?id=493376

            Bug ID: 493376
           Summary: Selecting multiple .desktop files on the desktop
                    causes extreme lag
    Classification: Plasma
           Product: plasmashell
           Version: 6.1.5
          Platform: Manjaro
                OS: Linux
            Status: REPORTED
          Severity: minor
          Priority: NOR
         Component: Folder
          Assignee: plasma-b...@kde.org
          Reporter: a...@public.simplelogin.com
                CC: h...@kde.org
  Target Milestone: 1.0

SUMMARY
Quickly selecting/deselecting multiple .desktop files on the desktop using the
selection rectangle causes lag and throttling, especially if at least 10 (the
minimum number may vary) are being selected in a row or column.

STEPS TO REPRODUCE
1. Add at least 10 different .desktop files (symlinks) from the application
launcher by right-clicking on an each app and selecting "Add to Desktop".
2. Align all the files in one or multiple rows/columns on the desktop.
3. Hold the left mouse button and quickly move the cursor until they are all
selected, then quickly move it backwards while still holding the button to
deselect them one by one.
4. Repeat the previous point multiple times to cause lag.

OBSERVED RESULT
You should notice visible lag.
I also get this message from the system log: "systemd[1]: Looping too fast.
Throttling execution a little."

EXPECTED RESULT
There should be no lag at all.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 
KDE Plasma Version: 6.1.5
KDE Frameworks Version: 6.5.0
Qt Version: 6.7.2
Kernel Version: 6.9.12-3-MANJARO (64-bit)
Graphics Platform: Wayland

ADDITIONAL INFORMATION

I'm using a hybrid graphics laptop (Intel + Nvidia).

Operating System: Manjaro Linux 
Processors: 12 × 13th Gen Intel® Core™ i5-13420H
Memory: 15,3 GiB of RAM
Graphics Processor: Mesa Intel® Graphics

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